don't check for snap mode in common.sh, is only relevant to snap daemons (#1113)

snap mode is for daemons, remove it from client (i.e. common.sh)

supply leader info to client via snap

ci/testnet-deploy.sh

@@ -264,10 +264,19 @@ client_start() {
   declare vmPublicIp=$3
   declare count=$4
 
+  nodeConfig="\
+      rust-log=$RUST_LOG \
+      default-metrics-rate=$SOLANA_DEFAULT_METRICS_RATE \
+      metrics-config=$SOLANA_METRICS_CONFIG \
+      setup-args=$SOLANA_SETUP_ARGS \
+      leader-ip=$publicIp \
+    "
+
   vm_exec "$vmName" "$vmZone" "$vmPublicIp" \
     "Starting client $count:" \
     "\
       set -x;
+      sudo snap set solana $nodeConfig; \
       snap info solana; \
       sudo snap get solana; \
       threadCount=\$(nproc); \